| Ferdinand Johann von Morzin | |
| Birth Date: | January 1756 |
| Birth Place: | Ptenín, Habsburg monarchy |
| Death Place: | Prague, Austrian Empire |
| Allegiance: | Habsburg monarchy |
| Branch: | Infantry |
| Serviceyears: | 1770/71–1805 |
| Rank: | Feldmarschallleutnant |
| Battles: | French Revolutionary Wars |
| Awards: | Military Order of Maria Theresa (Knight's Cross) Inhaber of the Infantry Regiment N°54 |
| Relations: | Peter Prokop von Morzin (brother) |
| Laterwork: | Imperial-Royal Chamberlain |
Ferdinand Johann Graf von Morzin (1756 in Ptenín – 27 February 1805 in Prague) was a Bohemian nobleman and an Austrian infantry commander during the French Revolutionary Wars.